Addition of Vectors (Triangle Rule) | Eduvigyan When two effects act together (like wind + river current), the final motion is not found by simple addition. We use vector addition to find the resultant (final speed and direction). Topic: Vectors • Core idea: Resultant of two vectors at an angle Boat–Wind–Current Story (Motivation) Imagine you […]

We live in a three-dimensional world. So when an object moves, its direction can change in three independent ways: along x, along y, and along z. To handle such motion neatly, physics uses unit vectors and the resolution of vectors. Topic: Unit Vectors & Resolution of Vectors (3D) What is a Unit Vector? A unit

When vectors interact, we learn how they are related in space. Vector multiplication allows us to extract hidden geometric and physical meaning— such as angles, projection, work done, rotation, and area. There are two fundamental ways to multiply vectors: Dot Product (scalar result) and Cross Product (vector result). Dot Product (Scalar Product) The dot product

Physics describes not only how much something happens, but also where and in which direction it happens. This lesson builds the foundation for motion, force, and the laws of mechanics. Topic: Basic Mechanics • Level: Class 9–12 / First-year Start With a Real-Life Example Imagine you tell a friend: “I walked 5 kilometers today.” That

You always noticed that in the world where you are living things tend to move around a lot and this fascinates us to study the science of motion. Motion is the phenomenon in which a body changes its position over time. Mathematically, you can describe the motion of a body in terms of distance, displacement,